最简单的wait和notify例子
1.前言
网上很多例子都有点问题，会抛监视的异常，原因大多都是没有权限获取锁的问题，需要注意的是wait和notify都要放在synchronized代码块里面，synchronized (obj)中的obj就是锁。
2.代码.
public class Test2 extends Thread {public static Object obj = new Object();public static Integer signal = new Integer(1);@Overridepublic void run() {System.out.println("aa");try {Thread.sleep(500);synchronized (obj) {obj.wait();}} catch (InterruptedException e) {// TODO Auto-generated catch blocke.printStackTrace();}System.out.println("bb");}public void wakeUp(){synchronized (obj) {obj.notify();}}public static void main(String[] args) throws InterruptedException {Test2 test2 = new Test2();new Thread(test2).start();Thread.sleep(9000);test2.wakeUp();}} 1 楼 opnmzxcvb 16 小时前 this.notify();